Alert archive / Illinois / Special Weather Statements in 2021
Special Weather Statement, NWS Lincoln, IL
NWS Lincoln, IL issued this special weather statement at Aug 8, 2021, 5:46 PM CDT for Sangamon County, Illinois. It was in force for 29 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Aug 8, 2021, 5:46 PM CDT (22:46 UTC)
- Expired
- Aug 8, 2021, 6:15 PM CDT
- In force
- 29 min
- Issued by
- NWS Lincoln, IL
- Hail
- 0.00 in
- Wind
- 50
County Sangamon County, IL
The radar
The Lincoln radar (KILX), 35 km from the middle of the area, began a volume at 22:49 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Lincoln, IL (KILX), launched 12:00Z, 10.8 hours before the alert went out and 90 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 310 J/kg
- Mixed-layer CIN
- -97 J/kg
- Mixed-layer LCL
- 1165 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- -25 m²/s²
- 0-3 km storm-relative helicity
- -3 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
107
WWUS83 KILX 082246
SPSILX
Special Weather Statement
National Weather Service Lincoln IL
546 PM CDT Sun Aug 8 2021
ILZ041-042-048-051-082315-
Logan-Sangamon-Mason-Menard-
546 PM CDT Sun Aug 8 2021
...A strong thunderstorm will impact portions of eastern Menard,
southwestern Logan, northwestern Sangamon and east central Mason
Counties through 615 PM CDT...
At 545 PM CDT, Doppler radar was tracking a strong thunderstorm near
Sherman, or near Springfield, moving northeast at 50 mph.
HAZARD...Wind gusts up to 50 mph.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects.
This strong thunderstorm will be near...
Riverton around 550 PM CDT.
Williamsville around 555 PM CDT.
Cornland around 600 PM CDT.
Elkhart around 605 PM CDT.
This includes the following highways...
Interstate 55 near mile marker 92, and between mile markers 95 and
122.
Interstate 72 between mile markers 96 and 98, and between mile
markers 101 and 108.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 3972 8966 3987 8987 4022 8960 4004 8927
TIME...MOT...LOC 2245Z 223DEG 47KT 3986 8967
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...50 MPH
$$
SBThe office that day
Everything else NWS Lincoln, IL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 8, 2:21 PM CDT | Special Weather Statement | ILX | McLean | 24 min |
| Aug 8, 3:30 PM CDT | Special Weather Statement | ILX | McLean | 30 min |
| Aug 8, 4:29 PM CDT | Special Weather Statement | ILX | Morgan | 31 min |
| Aug 8, 4:45 PM CDT | Areal Flood Advisory | ILX | McLean | 2 hr |
| Aug 8, 4:54 PM CDT | Special Weather Statement | ILX | Menard | 36 min |
| Aug 8, 5:02 PM CDT | Special Weather Statement | ILX | Woodford | 28 min |
| Aug 8, 5:05 PM CDT | Severe Thunderstorm Warning | ILX | Logan, Mason, Menard | 25 min |
| Aug 8, 5:14 PM CDT | Severe Thunderstorm Warning | ILX | McLean, Tazewell, Woodford | 46 min |
| Aug 8, 5:29 PM CDT | Special Weather Statement | ILX | Sangamon | 31 min |
| Aug 8, 5:35 PM CDT | Flash Flood Warning | ILX | McLean | 3 hr |
Nearby
Special Weather Statements in Illinois, 2021Every special weather statement in 2021
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.